SCM7B40-02

Isolated Process Control Signal Conditioning Products S C M 7 B SCM7B40/41 Isolated Analog Voltage Input Modules, Wide Bandwidth Description Each SCM7B40/41 voltage input module accepts one channel of analog voltage input which is filtered, isolated, amplified, and converted to a high-level analog voltage for output to the process control system (Figure 1). Features These modules incorporate a five pole filtering approach to maximi e both time and fre uency response by ta ing advantage of both Thomson Bessel and Butterworth characteristics. One pole of the filter is on the field side of the isolation barrier four are on the process control system side. • Provides High-Level Voltage Outputs • Accepts Millivolt or Voltage Inputs • 10kHz Bandwidth • 1500Vrms Transformer Isolation After the initial field side filtering, the input signal is chopped by a proprietary chopper circuit and transferred across the transformer isolation barrier, suppressing transmission of common mode spikes and surges. The signal is thenreconstructed and filtered for process control system output. • Accuracy, ± 0.03% of Span Typical, ± 0.1% Max • ANSI/IEEE C37.90.1 Transient Protection • Input Protected to 120Vrms Continuous Modules accept a wide 14 - 35VDC power supply range (+24VDC nominal). Their compact packages (2.13”x1.705”x0.605” max) save space and are ideal for high channel density applications. They are designed for easy DIN rail mounting using any of the DIN bac panels. • Noise, 2mVp-p (5MHz), 1mVrms (100kHz) • Up to 110dB CMRR • Easy DIN Rail Mounting SA S ertified • CE and ATEX Compliant 1500Vrms Isolation Barrier + + – VIN 1 – 2 Surge Suppression and Protection LPF (1 pole) Iso-Chopper II™ Amplifier Pat. Pending LPF (4 pole) 4 5 X 0 VOUT COM NC Backpanel Term Block Field-Side Process Control System-Side 3 +V –V F i g u r e 1 : S C M 7 B 4 0 / 4 1 B l o ck DC Supply D ia g r a m 8 4 ©1995-2017 Dataforth Corporation, All Rights Reserved For information call 800-444-7644 ISO9001:2008-Registered QMS DC Supply/ Oscillator 5 VS (14-35VDC) COM Isolated Process Control Signal Conditioning Products Typical❇ at Module Input Signal Range Bias Current Resistance Normal Power Off Overload Protection Continuous Transient Output Signal Range(1) ffective Available Power(1) Resistance Protection Voltage/Current Limit CMV (Input-to-Output) Continuous Transient CMRR (50 or 60Hz) Accuracy(2) Linearity (3) Stability to Gain Input Offset Zero Suppression Output Offset Noise Peak at 5MHz B/W RMS at 10Hz to 100kHz B/W Peak at 0.1Hz to10Hz B/W Frequency and Time Response Bandwidth, – 3dB NMR Step Response, 90% Span Supply Voltage Current(1) Sensitivity and Ordering Information D SCM7B40 SCM7B41 – 1V to +1V ± 1nA – 10V to +40V ± 0.1nA min min min min min 120Vrms max ANSI/IEEE C37.90.1 * * † † 40mW * Continuous Short to Ground ± 12V, ± 14mA * 1500Vrms ANSI/IEEE C37.90.1 110dB ± 0.03% ± 0.1% ± 0.01% ± 0.02% * Input Range SCM7B40-02 SCM7B40-03 SCM7B40-07 SCM7B40-08 0 to +100mV 0 to +1V ± 100mV ± 1V SCM7B41-01 SCM7B41-02 SCM7B41-03 SCM7B41-04 SCM7B41-05 SCM7B41-06 0 to +10V ± 5V 10V 0 to +5V 0 to +20V 0 to +40V Output Ranges Available † * Output Range Part o u fi * * 110dB Span typical, Span max Span typical, Span max * +1 to +5V 0 to +5V 0 to +10V NONE A D am e SCM7B40-02 SCM7B40-02A SCM7B40-02D * ppm . ± 0.005%( Vz)(4) . Span ppm * * 2mV 1mV RTI(5) 10kHz dB per Decade above s Model S C M 7 B Specifications S C M 7 B * * * H * * * 14 to 35VDC 12mA ± 0.0001%/ %V S * * 2.13” x 1.705” x 0.605” max (54.1mm x 43.3mm x 15.4mm max) * Environmental Operating Temperature Range Storage Temperature Range Relative Humidity Emissions EN61000-6-4 Radiated, Conducted Immunity EN61000-6-2 RF ESD, EFT to to 0 to 95% Noncondensing ISM, Group 1 Class A ISM, Group 1 Performance A ± 0.5% Span Error Performance B * * Mechanical Dimensions (h)(w)(d) * * * * * * * * NOTES: ❇ ontact factory or your local Dataforth sales office for maximum values. Specification same as preceding model. Output Range and Supply urrent specifications are based on minimum output load resistance. inimum output load resistance is calculated by OUT2/PE, where PE is the Output ffective Available Power that guarantees output range, accuracy, and linearity specifications. Accuracy includes the effects of repeatability, hysteresis, and linearity. Linearity is calculated using the best fit straight line method. (4) VZ is the nominal input voltage that results in a 0V output. (5) RTI = Referenced to Input. Visit our website www.dataforth.com ©1995-2017 Dataforth Corporation, All Rights Reserved 8 5 ISO9001:2008-Registered QMS